Mozilla VPN is currently experiencing an outage. Our team is actively working to resolve the issue. Please check the status page for real-time updates. Thank you for your patience.

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

New version FF3.63 causes a faded screen with script running in the background. I understand it may not be entirely compatible with 64bit units. I was perfectly happy with 3.59 and would like to downgrade, is this possible and how?

AnonymousUser
AnonymousUser
more options

I would like to go back to version 3.59. 3.63 is slow and buggy on my unit.

This happened

Every time Firefox opened

I installed new version today

User Agent

Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0)

I would like to go back to version 3.59. 3.63 is slow and buggy on my unit. == This happened == Every time Firefox opened == I installed new version today == == User Agent == Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0)

Chosen solution

You can get 3.5.9 from here: http://www.mozilla.com/en-US/firefox/all-older.html

But 3.6.3 should run fine. DO you have any add-ons installed, that may be causing the problem?

Read this answer in context 👍 1

All Replies (1)

Chris Ilias
Chris Ilias
  • Moderator
more options

Chosen Solution

You can get 3.5.9 from here: http://www.mozilla.com/en-US/firefox/all-older.html

But 3.6.3 should run fine. DO you have any add-ons installed, that may be causing the problem?